" Filming ‘It’s Not Rocket Science’ has made me realise I’m missing the part of my brain that warns me about danger because – even though the tasks are terrifying – I find it really exciting. "
- Rachel Riley

The quote suggests that engaging in a challenging endeavor has given the speaker an insight into her own behavior and mindset. She notes that despite feeling fear, she finds excitement and thrills from these experiences, indicating a part of her brain might not be as active in warning her about potential dangers.

On a deeper level, this statement reflects on the human tendency to seek out thrilling or risky activities for personal growth and stimulation. The speaker's observation highlights an intrinsic aspect of personality where individuals may have varying levels of caution versus thrill-seeking behavior. This quote also touches upon the concept of adrenaline and how it can override fear, leading to a sense of excitement and adventure rather than apprehension. Understanding this dynamic can help people navigate their risk tolerance in various aspects of life.

Rachel Riley is a well-known British television presenter and physicist known for her work on popular science and mathematics shows. She has contributed significantly to making complex scientific concepts accessible to the general public through engaging and entertaining formats, such as the program mentioned in the quote, "It's Not Rocket Science."